Helmet



FIG. 1 is a perspective view of a helmet showing my new design;

FIG. 2 is a front view;

FIG. 3 is a rear view;

FIG. 4 is a top view;

FIG. 5 is a bottom view;

FIG. 6 is a right side view, and,

FIG. 7 is a sectional view taken along a line 7--7 in FIG. 2. 

The ornamental design for a helmet, as shown and described. 